Actually that interpretation is wrong, I think. Going by the drawing on the website, kneecaps aren't all that different; what's outlined is that the "cushion" behind the kneecap is thinner, leading to a kneecap that would stand out a bit less. Going by this drawing only, overall size doesn't change apart from that. Knees might just appear a bit smaller because they lean more in the inside. Of course since women generally have a smaller frames than men, it sounds likely that knees follow, but for the same size, that should be it.
Now if there's additional info NOT depicted there, I'm sorry. I might have massively misunderstood, too, but. Well, I hope not.
misschievous: Be happy! (Or I'll steal them. Somehow. I'll find a magic spell.)